The Interchangeable's include 2 or 3 high impact polycarbonate lenses with Hydrophobic Technology coating that repels water, oil, dust and sweat: smoke/flash mirror for bright sun conditions 18% CE Cat 3, high definition copper/flash mirror for normal to variable light conditions 26% CE Cat 2 and Clear lens for low light to night-time conditions 100% CE Cat 0. All lens tints offer 100% UVA,B,C protection and are decentered for precision optical clarity. All frames are TR90 Grilamid nylon and have adjustable nose bridges. All interchangeable styles come with a hard shell case, a micro fiber cleaning cloth and a No-Hassle Lifetime Warranty. (J-4)